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An object of mass 3.0 kg and travelling at 2.0 m/s collides head-on with a 2.0 kg object travelling in the opposite direction at 3.0 m/s.
Determine the velocity of each object after impact if the collision is perfectly elastic.
Determine the velocity just after impact of the objects in the previous question if the collision is completely inelastic and the objects stick together after impact.
The velocity-time graph of part of a cyclist's trip consists of a straight line between v = 24.0 m/s at t = 13.0 s and v = 0 at t = 25.0 s
Light of wavelength 659.4 nm is emitted by a star. The wavelength of this light as measured on Earth is 661.4 nm. How fast is the star moving with respect to Earth
Iodine molecules dissociates into atoms after absorbing light of 4500 A.If one quantum of radiation is absorbed by each molecule, Find the KE of the iodine atoms
A small particle has charge -2.30\mu C and mass 3.00×10^-4kg . It moves from point A, where the electric potential is V_A = 120V , to point B, What is its speed at point B
A student notices that 38 mm f11 appears near the lens of an inexpensive camera. What is the focal length of the lens. What is the diameter of the diaphragm opening
Calculate the centripetal force on the motorcycle.
Two ambulances move toward each other on a straight road. Each travels at a speed of 65 mph. The siren on each ambulance produces a sound wave of frequency 460 Hz. (Take the speed of sound in air to be 340 m/s.)
A 15-kg iron ball is dropped onto a pavement from a height of 80m. Suppose half of the heat generated goes into warming the ball. What is the temperature increase of the ball in degree C
A 100 W lightbulb produces 4.0 W of visible light. What is the light intensity on a wall 3.0 m away from the lightbulb
A 3.0cm × 3.0cm parallel-plate capacitor has a 2.0mm spacing. The electric field strength inside the capacitor is 1.1×105V/m
Small spheres of diameter 0.92 mm fall through 20°C water with a terminal speed of 0.90 cm/s. Calculate the density of the spheres
A ball bounces to 47 percent of its original height. What is the coefficient of restitution of the ball-floor system
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